#include <vnet/ip/ip.h>
#include <vppinfra/bihash_48_8.h>
#include <vnet/ip/reass/ip6_full_reass.h>
+#include <vnet/ip/ip6_inlines.h>
#define MSEC_PER_SEC 1000
#define IP6_FULL_REASS_TIMEOUT_DEFAULT_MS 100
IP6_FULL_REASS_RC_TOO_MANY_FRAGMENTS,
IP6_FULL_REASS_RC_NO_BUF,
IP6_FULL_REASS_RC_HANDOFF,
+ IP6_FULL_REASS_RC_INVALID_FRAG_LEN,
} ip6_full_reass_rc_t;
typedef struct
/** Worker handoff */
u32 fq_index;
+ u32 fq_local_index;
u32 fq_feature_index;
// reference count for enabling/disabling feature - per interface
u32 *feature_use_refcount_per_intf;
+
+ // whether local fragmented packets are reassembled or not
+ int is_local_reass_enabled;
} ip6_full_reass_main_t;
extern ip6_full_reass_main_t ip6_full_reass_main;
ICMP_ERROR_FL_NOT_MULT_8,
FINALIZE,
HANDOFF,
+ PASSTHROUGH,
} ip6_full_reass_trace_operation_e;
typedef struct
format (s, "handoff from thread #%u to thread #%u", t->thread_id,
t->thread_id_to);
break;
+ case PASSTHROUGH:
+ s = format (s, "passthrough - not a fragment");
+ break;
}
return s;
}
static void
ip6_full_reass_add_trace (vlib_main_t * vm, vlib_node_runtime_t * node,
- ip6_full_reass_main_t * rm,
ip6_full_reass_t * reass, u32 bi,
ip6_frag_hdr_t * ip6_frag_header,
ip6_full_reass_trace_operation_e action,
vlib_buffer_t *b = vlib_get_buffer (vm, bi);
vnet_buffer_opaque_t *vnb = vnet_buffer (b);
bool is_after_handoff = false;
+ if (pool_is_free_index
+ (vm->trace_main.trace_buffer_pool, vlib_buffer_get_trace_index (b)))
+ {
+ // this buffer's trace is gone
+ b->flags &= ~VLIB_BUFFER_IS_TRACED;
+ return;
+ }
if (vlib_buffer_get_trace_thread (b) != vm->thread_index)
{
is_after_handoff = true;
}
always_inline void
-ip6_full_reass_drop_all (vlib_main_t * vm, vlib_node_runtime_t * node,
- ip6_full_reass_main_t * rm, ip6_full_reass_t * reass)
+ip6_full_reass_drop_all (vlib_main_t *vm, vlib_node_runtime_t *node,
+ ip6_full_reass_t *reass)
{
u32 range_bi = reass->first_bi;
vlib_buffer_t *range_b;
always_inline void
ip6_full_reass_on_timeout (vlib_main_t * vm, vlib_node_runtime_t * node,
- ip6_full_reass_main_t * rm,
ip6_full_reass_t * reass, u32 * icmp_bi)
{
if (~0 == reass->first_bi)
*icmp_bi = reass->first_bi;
if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
{
- ip6_full_reass_add_trace (vm, node, rm, reass, reass->first_bi,
- NULL, ICMP_ERROR_RT_EXCEEDED, ~0);
+ ip6_full_reass_add_trace (vm, node, reass, reass->first_bi, NULL,
+ ICMP_ERROR_RT_EXCEEDED, ~0);
}
// fragment with offset zero received - send icmp message back
if (b->flags & VLIB_BUFFER_NEXT_PRESENT)
0);
}
}
- ip6_full_reass_drop_all (vm, node, rm, reass);
+ ip6_full_reass_drop_all (vm, node, reass);
}
always_inline ip6_full_reass_t *
-ip6_full_reass_find_or_create (vlib_main_t * vm, vlib_node_runtime_t * node,
- ip6_full_reass_main_t * rm,
- ip6_full_reass_per_thread_t * rt,
- ip6_full_reass_kv_t * kv, u32 * icmp_bi,
- u8 * do_handoff)
+ip6_full_reass_find_or_create (vlib_main_t *vm, vlib_node_runtime_t *node,
+ ip6_full_reass_main_t *rm,
+ ip6_full_reass_per_thread_t *rt,
+ ip6_full_reass_kv_t *kv, u32 *icmp_bi,
+ u8 *do_handoff, int skip_bihash)
{
ip6_full_reass_t *reass;
f64 now;
reass = NULL;
now = vlib_time_now (vm);
- if (!clib_bihash_search_48_8
- (&rm->hash, (clib_bihash_kv_48_8_t *) kv, (clib_bihash_kv_48_8_t *) kv))
+ if (!skip_bihash && !clib_bihash_search_48_8 (&rm->hash, &kv->kv, &kv->kv))
{
- reass =
- pool_elt_at_index (rm->per_thread_data
- [kv->v.memory_owner_thread_index].pool,
- kv->v.reass_index);
if (vm->thread_index != kv->v.memory_owner_thread_index)
{
*do_handoff = 1;
- return reass;
+ return NULL;
}
+ reass =
+ pool_elt_at_index (rm->per_thread_data
+ [kv->v.memory_owner_thread_index].pool,
+ kv->v.reass_index);
+
if (now > reass->last_heard + rm->timeout)
{
- ip6_full_reass_on_timeout (vm, node, rm, reass, icmp_bi);
+ ip6_full_reass_on_timeout (vm, node, reass, icmp_bi);
ip6_full_reass_free (rm, rt, reass);
reass = NULL;
}
reass->data_len = 0;
reass->next_index = ~0;
reass->error_next_index = ~0;
+ reass->memory_owner_thread_index = vm->thread_index;
++rt->reass_n;
}
- reass->key.as_u64[0] = ((clib_bihash_kv_48_8_t *) kv)->key[0];
- reass->key.as_u64[1] = ((clib_bihash_kv_48_8_t *) kv)->key[1];
- reass->key.as_u64[2] = ((clib_bihash_kv_48_8_t *) kv)->key[2];
- reass->key.as_u64[3] = ((clib_bihash_kv_48_8_t *) kv)->key[3];
- reass->key.as_u64[4] = ((clib_bihash_kv_48_8_t *) kv)->key[4];
- reass->key.as_u64[5] = ((clib_bihash_kv_48_8_t *) kv)->key[5];
kv->v.reass_index = (reass - rt->pool);
kv->v.memory_owner_thread_index = vm->thread_index;
reass->last_heard = now;
- int rv =
- clib_bihash_add_del_48_8 (&rm->hash, (clib_bihash_kv_48_8_t *) kv, 2);
- if (rv)
+ if (!skip_bihash)
{
- ip6_full_reass_free (rm, rt, reass);
- reass = NULL;
- // if other worker created a context already work with the other copy
- if (-2 == rv)
- goto again;
+ reass->key.as_u64[0] = kv->kv.key[0];
+ reass->key.as_u64[1] = kv->kv.key[1];
+ reass->key.as_u64[2] = kv->kv.key[2];
+ reass->key.as_u64[3] = kv->kv.key[3];
+ reass->key.as_u64[4] = kv->kv.key[4];
+ reass->key.as_u64[5] = kv->kv.key[5];
+
+ int rv = clib_bihash_add_del_48_8 (&rm->hash, &kv->kv, 2);
+ if (rv)
+ {
+ ip6_full_reass_free (rm, rt, reass);
+ reass = NULL;
+ // if other worker created a context already work with the other copy
+ if (-2 == rv)
+ goto again;
+ }
+ }
+ else
+ {
+ reass->key.as_u64[0] = ~0;
+ reass->key.as_u64[1] = ~0;
+ reass->key.as_u64[2] = ~0;
+ reass->key.as_u64[3] = ~0;
+ reass->key.as_u64[4] = ~0;
+ reass->key.as_u64[5] = ~0;
}
return reass;
vnet_buffer_opaque_t *first_b_vnb = vnet_buffer (first_b);
ip6_header_t *ip = vlib_buffer_get_current (first_b);
u16 ip6_frag_hdr_offset = first_b_vnb->ip.reass.ip6_frag_hdr_offset;
- ip6_ext_header_t *prev_hdr;
- frag_hdr =
- ip6_ext_header_find (vm, first_b, ip, IP_PROTOCOL_IPV6_FRAGMENTATION,
- &prev_hdr);
- if (prev_hdr)
+ ip6_ext_hdr_chain_t hdr_chain;
+ ip6_ext_header_t *prev_hdr = 0;
+ int res = ip6_ext_header_walk (first_b, ip, IP_PROTOCOL_IPV6_FRAGMENTATION,
+ &hdr_chain);
+ if (res < 0 ||
+ (hdr_chain.eh[res].protocol != IP_PROTOCOL_IPV6_FRAGMENTATION))
{
+ rv = IP6_FULL_REASS_RC_INTERNAL_ERROR;
+ goto free_buffers_and_return;
+ }
+ frag_hdr = ip6_ext_next_header_offset (ip, hdr_chain.eh[res].offset);
+ if (res > 0)
+ {
+ prev_hdr = ip6_ext_next_header_offset (ip, hdr_chain.eh[res - 1].offset);
prev_hdr->next_hdr = frag_hdr->next_hdr;
}
else
{
ip->protocol = frag_hdr->next_hdr;
}
- if (!((u8 *) frag_hdr - (u8 *) ip == ip6_frag_hdr_offset))
+ if (hdr_chain.eh[res].offset != ip6_frag_hdr_offset)
{
rv = IP6_FULL_REASS_RC_INTERNAL_ERROR;
goto free_buffers_and_return;
first_b->flags &= ~VLIB_BUFFER_EXT_HDR_VALID;
if (PREDICT_FALSE (first_b->flags & VLIB_BUFFER_IS_TRACED))
{
- ip6_full_reass_add_trace (vm, node, rm, reass, reass->first_bi, NULL,
+ ip6_full_reass_add_trace (vm, node, reass, reass->first_bi, NULL,
FINALIZE, ~0);
#if 0
// following code does a hexdump of packet fragments to stdout ...
always_inline void
ip6_full_reass_insert_range_in_chain (vlib_main_t * vm,
- ip6_full_reass_main_t * rm,
- ip6_full_reass_per_thread_t * rt,
ip6_full_reass_t * reass,
u32 prev_range_bi, u32 new_next_bi)
{
}
always_inline ip6_full_reass_rc_t
-ip6_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
- ip6_full_reass_main_t * rm,
- ip6_full_reass_per_thread_t * rt,
- ip6_full_reass_t * reass, u32 * bi0, u32 * next0,
- u32 * error0, ip6_frag_hdr_t * frag_hdr,
- bool is_custom_app, u32 * handoff_thread_idx)
+ip6_full_reass_update (vlib_main_t *vm, vlib_node_runtime_t *node,
+ ip6_full_reass_main_t *rm,
+ ip6_full_reass_per_thread_t *rt,
+ ip6_full_reass_t *reass, u32 *bi0, u32 *next0,
+ u32 *error0, ip6_frag_hdr_t *frag_hdr,
+ bool is_custom_app, u32 *handoff_thread_idx,
+ int skip_bihash)
{
int consumed = 0;
vlib_buffer_t *fb = vlib_get_buffer (vm, *bi0);
u32 fragment_length =
vlib_buffer_length_in_chain (vm, fb) -
(fvnb->ip.reass.ip6_frag_hdr_offset + sizeof (*frag_hdr));
+ if (0 == fragment_length)
+ {
+ return IP6_FULL_REASS_RC_INVALID_FRAG_LEN;
+ }
u32 fragment_last = fvnb->ip.reass.fragment_last =
fragment_first + fragment_length - 1;
int more_fragments = ip6_frag_hdr_more (frag_hdr);
if (~0 == reass->first_bi)
{
// starting a new reassembly
- ip6_full_reass_insert_range_in_chain (vm, rm, rt, reass, prev_range_bi,
- *bi0);
+ ip6_full_reass_insert_range_in_chain (vm, reass, prev_range_bi, *bi0);
reass->min_fragment_length = clib_net_to_host_u16 (fip->payload_length);
consumed = 1;
reass->fragments_n = 1;
~0 == candidate_range_bi)
{
// special case - this fragment falls beyond all known ranges
- ip6_full_reass_insert_range_in_chain (vm, rm, rt, reass,
- prev_range_bi, *bi0);
+ ip6_full_reass_insert_range_in_chain (vm, reass, prev_range_bi,
+ *bi0);
consumed = 1;
break;
}
if (fragment_last < candidate_vnb->ip.reass.range_first)
{
// this fragment ends before candidate range without any overlap
- ip6_full_reass_insert_range_in_chain (vm, rm, rt, reass,
- prev_range_bi, *bi0);
+ ip6_full_reass_insert_range_in_chain (vm, reass, prev_range_bi,
+ *bi0);
consumed = 1;
}
else if (fragment_first == candidate_vnb->ip.reass.range_first &&
// overlapping fragment - not allowed by RFC 8200
if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
{
- ip6_full_reass_add_trace (vm, node, rm, reass, *bi0, frag_hdr,
+ ip6_full_reass_add_trace (vm, node, reass, *bi0, frag_hdr,
RANGE_OVERLAP, ~0);
}
- ip6_full_reass_drop_all (vm, node, rm, reass);
+ ip6_full_reass_drop_all (vm, node, reass);
ip6_full_reass_free (rm, rt, reass);
*next0 = IP6_FULL_REASSEMBLY_NEXT_DROP;
*error0 = IP6_ERROR_REASS_OVERLAPPING_FRAGMENT;
{
if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
{
- ip6_full_reass_add_trace (vm, node, rm, reass, *bi0, frag_hdr,
- RANGE_NEW, ~0);
+ ip6_full_reass_add_trace (vm, node, reass, *bi0, frag_hdr, RANGE_NEW,
+ ~0);
}
}
+ else if (skip_bihash)
+ {
+ // if this reassembly is not in bihash, then the packet must have been
+ // consumed
+ return IP6_FULL_REASS_RC_INTERNAL_ERROR;
+ }
if (~0 != reass->last_packet_octet &&
reass->data_len == reass->last_packet_octet + 1)
{
}
else
{
+ if (skip_bihash)
+ {
+ // if this reassembly is not in bihash, it should've been an atomic
+ // fragment and thus finalized
+ return IP6_FULL_REASS_RC_INTERNAL_ERROR;
+ }
if (consumed)
{
*bi0 = ~0;
}
always_inline bool
-ip6_full_reass_verify_upper_layer_present (vlib_node_runtime_t * node,
- vlib_buffer_t * b,
- ip6_frag_hdr_t * frag_hdr)
+ip6_full_reass_verify_upper_layer_present (vlib_node_runtime_t *node,
+ vlib_buffer_t *b,
+ ip6_ext_hdr_chain_t *hc)
{
- ip6_ext_header_t *tmp = (ip6_ext_header_t *) frag_hdr;
- while (ip6_ext_hdr (tmp->next_hdr))
+ int nh = hc->eh[hc->length - 1].protocol;
+ /* Checking to see if it's a terminating header */
+ if (ip6_ext_hdr (nh))
{
- tmp = ip6_ext_next_header (tmp);
- }
- if (IP_PROTOCOL_IP6_NONXT == tmp->next_hdr)
- {
- icmp6_error_set_vnet_buffer (b, ICMP6_parameter_problem,
- ICMP6_parameter_problem_first_fragment_has_incomplete_header_chain,
- 0);
+ icmp6_error_set_vnet_buffer (
+ b, ICMP6_parameter_problem,
+ ICMP6_parameter_problem_first_fragment_has_incomplete_header_chain, 0);
b->error = node->errors[IP6_ERROR_REASS_MISSING_UPPER];
-
return false;
}
return true;
always_inline bool
ip6_full_reass_verify_fragment_multiple_8 (vlib_main_t * vm,
- vlib_node_runtime_t * node,
vlib_buffer_t * b,
ip6_frag_hdr_t * frag_hdr)
{
always_inline bool
ip6_full_reass_verify_packet_size_lt_64k (vlib_main_t * vm,
- vlib_node_runtime_t * node,
vlib_buffer_t * b,
ip6_frag_hdr_t * frag_hdr)
{
}
always_inline uword
-ip6_full_reassembly_inline (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame, bool is_feature,
- bool is_custom_app)
+ip6_full_reassembly_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
+ vlib_frame_t *frame, bool is_feature,
+ bool is_custom_app, bool is_local)
{
u32 *from = vlib_frame_vector_args (frame);
u32 n_left_from, n_left_to_next, *to_next, next_index;
b0 = vlib_get_buffer (vm, bi0);
ip6_header_t *ip0 = vlib_buffer_get_current (b0);
- ip6_frag_hdr_t *frag_hdr = NULL;
- ip6_ext_header_t *prev_hdr;
- if (ip6_ext_hdr (ip0->protocol))
+ ip6_frag_hdr_t *frag_hdr;
+ ip6_ext_hdr_chain_t hdr_chain;
+ int res = ip6_ext_header_walk (
+ b0, ip0, IP_PROTOCOL_IPV6_FRAGMENTATION, &hdr_chain);
+ if (res < 0 ||
+ hdr_chain.eh[res].protocol != IP_PROTOCOL_IPV6_FRAGMENTATION)
{
- frag_hdr =
- ip6_ext_header_find (vm, b0, ip0,
- IP_PROTOCOL_IPV6_FRAGMENTATION,
- &prev_hdr);
+ // this is a mangled packet - no fragmentation
+ next0 = IP6_FULL_REASSEMBLY_NEXT_DROP;
+ ip6_full_reass_add_trace (vm, node, NULL, bi0, NULL, PASSTHROUGH,
+ ~0);
+ goto skip_reass;
}
- if (!frag_hdr)
+ if (is_local && !rm->is_local_reass_enabled)
{
- // this is a regular packet - no fragmentation
- next0 = IP6_FULL_REASSEMBLY_NEXT_INPUT;
+ next0 = IP6_FULL_REASSEMBLY_NEXT_DROP;
goto skip_reass;
}
+ frag_hdr =
+ ip6_ext_next_header_offset (ip0, hdr_chain.eh[res].offset);
vnet_buffer (b0)->ip.reass.ip6_frag_hdr_offset =
- (u8 *) frag_hdr - (u8 *) ip0;
+ hdr_chain.eh[res].offset;
if (0 == ip6_frag_hdr_offset (frag_hdr))
{
// first fragment - verify upper-layer is present
- if (!ip6_full_reass_verify_upper_layer_present
- (node, b0, frag_hdr))
+ if (!ip6_full_reass_verify_upper_layer_present (node, b0,
+ &hdr_chain))
{
next0 = IP6_FULL_REASSEMBLY_NEXT_ICMP_ERROR;
goto skip_reass;
}
}
- if (!ip6_full_reass_verify_fragment_multiple_8
- (vm, node, b0, frag_hdr)
- || !ip6_full_reass_verify_packet_size_lt_64k (vm, node, b0,
- frag_hdr))
+ if (!ip6_full_reass_verify_fragment_multiple_8 (vm, b0, frag_hdr) ||
+ !ip6_full_reass_verify_packet_size_lt_64k (vm, b0, frag_hdr))
{
next0 = IP6_FULL_REASSEMBLY_NEXT_ICMP_ERROR;
goto skip_reass;
}
+
+ int skip_bihash = 0;
ip6_full_reass_kv_t kv;
u8 do_handoff = 0;
- kv.k.as_u64[0] = ip0->src_address.as_u64[0];
- kv.k.as_u64[1] = ip0->src_address.as_u64[1];
- kv.k.as_u64[2] = ip0->dst_address.as_u64[0];
- kv.k.as_u64[3] = ip0->dst_address.as_u64[1];
- kv.k.as_u64[4] =
- ((u64) vec_elt (ip6_main.fib_index_by_sw_if_index,
- vnet_buffer (b0)->sw_if_index[VLIB_RX])) << 32 |
- (u64) frag_hdr->identification;
- kv.k.as_u64[5] = ip0->protocol;
+ if (0 == ip6_frag_hdr_offset (frag_hdr) &&
+ !ip6_frag_hdr_more (frag_hdr))
+ {
+ // this is atomic fragment and needs to be processed separately
+ skip_bihash = 1;
+ }
+ else
+ {
+ kv.k.as_u64[0] = ip0->src_address.as_u64[0];
+ kv.k.as_u64[1] = ip0->src_address.as_u64[1];
+ kv.k.as_u64[2] = ip0->dst_address.as_u64[0];
+ kv.k.as_u64[3] = ip0->dst_address.as_u64[1];
+ kv.k.as_u64[4] =
+ ((u64) vec_elt (ip6_main.fib_index_by_sw_if_index,
+ vnet_buffer (b0)->sw_if_index[VLIB_RX]))
+ << 32 |
+ (u64) frag_hdr->identification;
+ kv.k.as_u64[5] = ip0->protocol;
+ }
- ip6_full_reass_t *reass =
- ip6_full_reass_find_or_create (vm, node, rm, rt, &kv, &icmp_bi,
- &do_handoff);
+ ip6_full_reass_t *reass = ip6_full_reass_find_or_create (
+ vm, node, rm, rt, &kv, &icmp_bi, &do_handoff, skip_bihash);
if (reass)
{
else if (reass)
{
u32 handoff_thread_idx;
- switch (ip6_full_reass_update
- (vm, node, rm, rt, reass, &bi0, &next0, &error0,
- frag_hdr, is_custom_app, &handoff_thread_idx))
+ u32 counter = ~0;
+ switch (ip6_full_reass_update (
+ vm, node, rm, rt, reass, &bi0, &next0, &error0, frag_hdr,
+ is_custom_app, &handoff_thread_idx, skip_bihash))
{
case IP6_FULL_REASS_RC_OK:
/* nothing to do here */
handoff_thread_idx;
break;
case IP6_FULL_REASS_RC_TOO_MANY_FRAGMENTS:
- vlib_node_increment_counter (vm, node->node_index,
- IP6_ERROR_REASS_FRAGMENT_CHAIN_TOO_LONG,
- 1);
- ip6_full_reass_drop_all (vm, node, rm, reass);
- ip6_full_reass_free (rm, rt, reass);
- goto next_packet;
+ counter = IP6_ERROR_REASS_FRAGMENT_CHAIN_TOO_LONG;
break;
case IP6_FULL_REASS_RC_NO_BUF:
- vlib_node_increment_counter (vm, node->node_index,
- IP6_ERROR_REASS_NO_BUF, 1);
- ip6_full_reass_drop_all (vm, node, rm, reass);
- ip6_full_reass_free (rm, rt, reass);
- goto next_packet;
+ counter = IP6_ERROR_REASS_NO_BUF;
break;
case IP6_FULL_REASS_RC_INTERNAL_ERROR:
- vlib_node_increment_counter (vm, node->node_index,
- IP6_ERROR_REASS_INTERNAL_ERROR,
+ counter = IP6_ERROR_REASS_INTERNAL_ERROR;
+ break;
+ case IP6_FULL_REASS_RC_INVALID_FRAG_LEN:
+ counter = IP6_ERROR_REASS_INVALID_FRAG_LEN;
+ break;
+ }
+ if (~0 != counter)
+ {
+ vlib_node_increment_counter (vm, node->node_index, counter,
1);
- ip6_full_reass_drop_all (vm, node, rm, reass);
+ ip6_full_reass_drop_all (vm, node, reass);
ip6_full_reass_free (rm, rt, reass);
goto next_packet;
- break;
}
}
else
/* bi0 might have been updated by reass_finalize, reload */
b0 = vlib_get_buffer (vm, bi0);
- b0->error = node->errors[error0];
+ if (IP6_ERROR_NONE != error0)
+ {
+ b0->error = node->errors[error0];
+ }
if (next0 == IP6_FULL_REASSEMBLY_NEXT_HANDOFF)
{
if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
{
- ip6_full_reass_add_trace (vm, node, rm, NULL, bi0,
- frag_hdr, HANDOFF,
- vnet_buffer (b0)->ip.
- reass.owner_thread_index);
+ ip6_full_reass_add_trace (
+ vm, node, NULL, bi0, frag_hdr, HANDOFF,
+ vnet_buffer (b0)->ip.reass.owner_thread_index);
}
}
else if (is_feature && IP6_ERROR_NONE == error0)
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip6_full_reassembly_inline (vm, node, frame, false /* is_feature */ ,
- false /* is_custom_app */ );
+ return ip6_full_reassembly_inline (vm, node, frame, false /* is_feature */,
+ false /* is_custom_app */,
+ false /* is_local */);
}
-/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_full_reass_node) = {
.name = "ip6-full-reassembly",
.vector_size = sizeof (u32),
[IP6_FULL_REASSEMBLY_NEXT_HANDOFF] = "ip6-full-reassembly-handoff",
},
};
-/* *INDENT-ON* */
+
+VLIB_NODE_FN (ip6_local_full_reass_node)
+(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
+{
+ return ip6_full_reassembly_inline (vm, node, frame, false /* is_feature */,
+ false /* is_custom_app */,
+ true /* is_local */);
+}
+
+VLIB_REGISTER_NODE (ip6_local_full_reass_node) = {
+ .name = "ip6-local-full-reassembly",
+ .vector_size = sizeof (u32),
+ .format_trace = format_ip6_full_reass_trace,
+ .n_errors = ARRAY_LEN (ip6_full_reassembly_error_strings),
+ .error_strings = ip6_full_reassembly_error_strings,
+ .n_next_nodes = IP6_FULL_REASSEMBLY_N_NEXT,
+ .next_nodes =
+ {
+ [IP6_FULL_REASSEMBLY_NEXT_INPUT] = "ip6-input",
+ [IP6_FULL_REASSEMBLY_NEXT_DROP] = "ip6-drop",
+ [IP6_FULL_REASSEMBLY_NEXT_ICMP_ERROR] = "ip6-icmp-error",
+ [IP6_FULL_REASSEMBLY_NEXT_HANDOFF] = "ip6-local-full-reassembly-handoff",
+ },
+};
VLIB_NODE_FN (ip6_full_reass_node_feature) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip6_full_reassembly_inline (vm, node, frame, true /* is_feature */ ,
- false /* is_custom_app */ );
+ return ip6_full_reassembly_inline (vm, node, frame, true /* is_feature */,
+ false /* is_custom_app */,
+ false /* is_local */);
}
-/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_full_reass_node_feature) = {
.name = "ip6-full-reassembly-feature",
.vector_size = sizeof (u32),
[IP6_FULL_REASSEMBLY_NEXT_HANDOFF] = "ip6-full-reass-feature-hoff",
},
};
-/* *INDENT-ON* */
-/* *INDENT-OFF* */
VNET_FEATURE_INIT (ip6_full_reassembly_feature, static) = {
.arc_name = "ip6-unicast",
.node_name = "ip6-full-reassembly-feature",
"ipsec6-input-feature"),
.runs_after = 0,
};
-/* *INDENT-ON* */
#ifndef CLIB_MARCH_VARIANT
static u32
if ((error = vlib_call_init_function (vm, ip_main_init)))
return error;
ip6_register_protocol (IP_PROTOCOL_IPV6_FRAGMENTATION,
- ip6_full_reass_node.index);
+ ip6_local_full_reass_node.index);
+ rm->is_local_reass_enabled = 1;
rm->fq_index = vlib_frame_queue_main_init (ip6_full_reass_node.index, 0);
+ rm->fq_local_index =
+ vlib_frame_queue_main_init (ip6_local_full_reass_node.index, 0);
rm->fq_feature_index =
vlib_frame_queue_main_init (ip6_full_reass_node_feature.index, 0);
#endif /* CLIB_MARCH_VARIANT */
static uword
-ip6_full_reass_walk_expired (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * f)
+ip6_full_reass_walk_expired (vlib_main_t *vm, vlib_node_runtime_t *node,
+ CLIB_UNUSED (vlib_frame_t *f))
{
ip6_full_reass_main_t *rm = &ip6_full_reass_main;
uword event_type, *event_data = 0;
switch (event_type)
{
- case ~0: /* no events => timeout */
- /* nothing to do here */
- break;
+ case ~0:
+ /* no events => timeout */
+ /* fallthrough */
case IP6_EVENT_CONFIG_CHANGED:
+ /* nothing to do here */
break;
default:
clib_warning ("BUG: event type 0x%wx", event_type);
clib_spinlock_lock (&rt->lock);
vec_reset_length (pool_indexes_to_free);
- /* *INDENT-OFF* */
- pool_foreach_index (index, rt->pool, ({
+ pool_foreach_index (index, rt->pool) {
reass = pool_elt_at_index (rt->pool, index);
if (now > reass->last_heard + rm->timeout)
{
vec_add1 (pool_indexes_to_free, index);
}
- }));
- /* *INDENT-ON* */
+ }
int *i;
- /* *INDENT-OFF* */
vec_foreach (i, pool_indexes_to_free)
{
ip6_full_reass_t *reass = pool_elt_at_index (rt->pool, i[0]);
u32 icmp_bi = ~0;
- ip6_full_reass_on_timeout (vm, node, rm, reass, &icmp_bi);
- if (~0 != icmp_bi)
- vec_add1 (vec_icmp_bi, icmp_bi);
+ ip6_full_reass_on_timeout (vm, node, reass, &icmp_bi);
+ if (~0 != icmp_bi)
+ vec_add1 (vec_icmp_bi, icmp_bi);
- ip6_full_reass_free (rm, rt, reass);
- }
- /* *INDENT-ON* */
+ ip6_full_reass_free (rm, rt, reass);
+ }
clib_spinlock_unlock (&rt->lock);
}
return 0;
}
-/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_full_reass_expire_node) = {
.function = ip6_full_reass_walk_expired,
.format_trace = format_ip6_full_reass_trace,
.error_strings = ip6_full_reassembly_error_strings,
};
-/* *INDENT-ON* */
static u8 *
format_ip6_full_reass_key (u8 * s, va_list * args)
clib_spinlock_lock (&rt->lock);
if (details)
{
- /* *INDENT-OFF* */
- pool_foreach (reass, rt->pool, {
+ pool_foreach (reass, rt->pool) {
vlib_cli_output (vm, "%U", format_ip6_full_reass, vm, reass);
- });
- /* *INDENT-ON* */
+ }
}
sum_reass_n += rt->reass_n;
clib_spinlock_unlock (&rt->lock);
vlib_cli_output (vm,
"Maximum configured concurrent full IP6 reassemblies per worker-thread: %lu\n",
(long unsigned) rm->max_reass_n);
+ vlib_cli_output (vm,
+ "Maximum configured amount of fragments "
+ "per full IP6 reassembly: %lu\n",
+ (long unsigned) rm->max_reass_len);
vlib_cli_output (vm,
"Maximum configured full IP6 reassembly timeout: %lums\n",
(long unsigned) rm->timeout_ms);
return 0;
}
-/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_ip6_full_reassembly_cmd, static) = {
.path = "show ip6-full-reassembly",
.short_help = "show ip6-full-reassembly [details]",
.function = show_ip6_full_reass,
};
-/* *INDENT-ON* */
#ifndef CLIB_MARCH_VARIANT
vnet_api_error_t
}
always_inline uword
-ip6_full_reassembly_handoff_inline (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame, bool is_feature)
+ip6_full_reassembly_handoff_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
+ vlib_frame_t *frame, bool is_feature,
+ bool is_local)
{
ip6_full_reass_main_t *rm = &ip6_full_reass_main;
b = bufs;
ti = thread_indices;
- fq_index = (is_feature) ? rm->fq_feature_index : rm->fq_index;
+ if (is_feature)
+ {
+ fq_index = rm->fq_feature_index;
+ }
+ else
+ {
+ if (is_local)
+ {
+ fq_index = rm->fq_local_index;
+ }
+ else
+ {
+ fq_index = rm->fq_index;
+ }
+ }
while (n_left_from > 0)
{
ti += 1;
b += 1;
}
- n_enq =
- vlib_buffer_enqueue_to_thread (vm, fq_index, from, thread_indices,
- frame->n_vectors, 1);
+ n_enq = vlib_buffer_enqueue_to_thread (vm, node, fq_index, from,
+ thread_indices, frame->n_vectors, 1);
if (n_enq < frame->n_vectors)
vlib_node_increment_counter (vm, node->node_index,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip6_full_reassembly_handoff_inline (vm, node, frame,
- false /* is_feature */ );
+ return ip6_full_reassembly_handoff_inline (
+ vm, node, frame, false /* is_feature */, false /* is_local */);
}
-/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_full_reassembly_handoff_node) = {
.name = "ip6-full-reassembly-handoff",
.vector_size = sizeof (u32),
},
};
+VLIB_NODE_FN (ip6_local_full_reassembly_handoff_node)
+(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
+{
+ return ip6_full_reassembly_handoff_inline (
+ vm, node, frame, false /* is_feature */, true /* is_feature */);
+}
+
+VLIB_REGISTER_NODE (ip6_local_full_reassembly_handoff_node) = {
+ .name = "ip6-local-full-reassembly-handoff",
+ .vector_size = sizeof (u32),
+ .n_errors = ARRAY_LEN(ip6_full_reassembly_handoff_error_strings),
+ .error_strings = ip6_full_reassembly_handoff_error_strings,
+ .format_trace = format_ip6_full_reassembly_handoff_trace,
+
+ .n_next_nodes = 1,
+
+ .next_nodes = {
+ [0] = "error-drop",
+ },
+};
VLIB_NODE_FN (ip6_full_reassembly_feature_handoff_node) (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- return ip6_full_reassembly_handoff_inline (vm, node, frame, true /* is_feature */ );
+ return ip6_full_reassembly_handoff_inline (
+ vm, node, frame, true /* is_feature */, false /* is_local */);
}
-/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_full_reassembly_feature_handoff_node) = {
.name = "ip6-full-reass-feature-hoff",
.vector_size = sizeof (u32),
[0] = "error-drop",
},
};
-/* *INDENT-ON* */
#ifndef CLIB_MARCH_VARIANT
int
}
return -1;
}
+
+void
+ip6_local_full_reass_enable_disable (int enable)
+{
+ if (enable)
+ {
+ if (!ip6_full_reass_main.is_local_reass_enabled)
+ {
+ ip6_full_reass_main.is_local_reass_enabled = 1;
+ ip6_register_protocol (IP_PROTOCOL_IPV6_FRAGMENTATION,
+ ip6_local_full_reass_node.index);
+ }
+ }
+ else
+ {
+ if (ip6_full_reass_main.is_local_reass_enabled)
+ {
+ ip6_full_reass_main.is_local_reass_enabled = 0;
+ ip6_unregister_protocol (IP_PROTOCOL_IPV6_FRAGMENTATION);
+ }
+ }
+}
+
+int
+ip6_local_full_reass_enabled ()
+{
+ return ip6_full_reass_main.is_local_reass_enabled;
+}
+
#endif
/*
Code Review / vpp.git / blobdiff